Home / 156,640.78-235,001.22-51,460.66

Finding the Fourth Proportional to 156,640.78, 235,001.22 and 51,460.66

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Solution

The fourth proportional to 156,640.78, 235,001.22 and 51,460.66 is: 77,204.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,640.78 : 235,001.22 = 51,460.66 : x
  2. Step 2: Convert to fraction form
    156,640.78/235,001.22 = 51,460.66/x
  3. Step 3: Cross multiply
    156,640.78x = 235,001.22 × 51,460.66
  4. Step 4: Simplify right side
    156,640.78x = 12,093,317,882.01
  5. Step 5: Solve for x
    x = 12,093,317,882.01/156,640.78
  6. Step 6: Final answer
    x = 77,204.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.